. >>> investigators say speed was a factor in the car accident that killed "fast and furious" star paul walker, but they are trying to figure out how fast the porche was going when it hit a pole and exploded. walker died along with his friend and financial advisor near los angeles yesterday. >>> back here in the bay area candles burned to honor walker's memory. a local car club organized the vigil at the mill pea dissquare shopping center. >>> hundreds gathered to remember their loved ones on world aids day. more than 600 people were at the national aids memorial grove in golden gate park surrounded by pictures of loved ones the audience heard from speakers who urged them not to be complaisant and said the fight against aids and hiv is not over. today's ceremony ended with the reading of names engraved in the circle of friends. tonight the city of san francisco is showing its unity with world aids day. city hall is lit in red. the universal symbol of aware -- awareness and support of those living with hiv. >>> it is time to turn to our weather. a big change with our temperatures. leigh